Hello Nlanders,
I've been working in the customer service line for close to 7 years now. I actually wanted to shift career but someone advised that I go for a certification in Customer Service. As far as I believe, anyone can be trained to be a Customer Service Agent, I may be wrong though. I studied sociology so it was easy for me.
Please my question is, is it advisable to go for certification in that field or a waste of time and resources?

No, it is not a waste of time, You have a very good working experience in customer service.While it is a good idea to further your career in Customer Service, I will implore you to go for industry-wide areas where you can transfer your experience into the various aspect of Customer services such as customer managers, customer support specialist, customer success champion, customer technical support. Although these roles may vary base on industries (the IT industry is trending). Here is a list of place where you can learn more about Support and improve your skills as well as industry-specific knowledge.

https://www.helpscout.net/resources/ :Help scout has good resources on how to talk to customers and how to find jobs in the area of customer support and services
https://www.nicereply.com/blog/ :At nicereply you will find information about tools, tips, practices, certifications and trends in customer support

https://www.coursera.org/specializations/google-it-support :here are free courses organised by google to for IT technical support knowledge

https://www.coursera.org/specializations/effective-business-communication : Effective writing and communication is an essential skill for every support professional. this free course will help you improve your business writing and communication skills.

https://www.supportdriven.com/ :There is nothing as good as a community where you share and learn about practices in customer service, Join this community and learn from other support professionals. You may even get the oppurtunity to score yourself a remote support role with a good pay.

goodluck: May the Force be with you

Thank you so much!!!!! I really appreciate your advice.

olarrysh:
No, it is not a waste of time, You have a very good working experience in customer service.While it is a good idea to further your career in Customer Service, I will implore you to go for industry-wide areas where you can transfer your experience into the various aspect of Customer services such as customer managers, customer support specialist, customer success champion, customer technical support. Although these roles may vary base on industries (the IT industry is trending). Here is a list of place where you can learn more about Support and improve your skills as well as industry-specific knowledge.

https://www.helpscout.net/resources/ :Help scout has good resources on how to talk to customers and how to find jobs in the area of customer support and services
https://www.nicereply.com/blog/ :At nicereply you will find information about tools, tips, practices, certifications and trends in customer support

https://www.coursera.org/specializations/google-it-support :here are free courses organised by google to for IT technical support knowledge

https://www.coursera.org/specializations/effective-business-communication : Effective writing and communication is an essential skill for every support professional. this free course will help you improve your business writing and communication skills.

https://www.supportdriven.com/ :There is nothing as good as a community where you share and learn about practices in customer service, Join this community and learn from other support professionals. You may even get the oppurtunity to score yourself a remote support role with a good pay.

goodluck: May the Force be with you