Overcharged6and double debited

Good day

First you guys took over 2 weeks to install my line which I still had to pay a pro rata for

Now you guys over charged me for my other like in Durban

In Feb I paid R728.70 for line AG***

Now in March why has it gone up to R1372.17?

I also made a payment last night of R2977

Then this morning you debit me again for R3535.20

Please resolve the amount for the AG*** line and refund me the second debit

I have attached the invoices

And my bank statement to show the amounts on my email