I operated this account decades ago from the early 2000's. Was good banking for a while but later got messy. Poor customer care and over-crowded bank space. I finally abandoned the bank after my ATM expired and left me stranded abroad. I called a million times and wasted the few cash that I had on me on calling this bank. They provided not a simple solution but pretended to be dumb. They just can't help with simple customer services. When I returned, I pulled out my cash and waved them goodbye. I never looked back since 2010. Last year, they emailed me telling me that my account was restricted. I didn't even budge. They thought that the message would pull me to their bank. I totally ignored them.
Surprisingly, today I got a message that the account is restored. WTF who cares?

Dear XXXX,
ACCOUNT RESTRICTION REMOVED
We are pleased to inform you that we have removed the restriction on your account
You now have unlimited access to your account as well as a wide range of our products and services
If you require further information or assistance, please call us on Bleep

Thank you for choosing Guaranty Trust Bank plc.

Gtb is master of poor customer service.

Maybe they thought money was still left inside the account lol or waiting for you to deposit money. So they'll come up with a story again