anyone that is good in English grammar and punctuations should pls help me decipher this conversation. I'd like to know how these commas are used, what kind of sentence are these.

Hey, yeah, so you asked about discount? we don't really offer any to our monthly members, but we do have 5% discount off the annual package, considering you've been a member for nine months and might make sense to switch to the annual package, we can prorate the previous nine month.

your help will be very appreciated thanks