I 'm having a very bad impression on AIA.

Recently, our insurance agent to get $$ from us for renewing our policy, his reasoning was that for some reason our credit card wasn't accept. (we deduct our payments via credit card auto deduction usually.)

So we gave him the money end of June. Yesterday, we received a letter from Standard Chartered Bank informing us that payment for AIA has been deducted EARLY June.

We are having 2 problems here.

1) Why did AIA claimed that payment didn't get through, when it was reflected on the Standard Chartered Credit Card bill that payment got through in EARLY june, and when the agent came LATE june, he claimed that payment didn't get through.

We called up the agent today, he rushed down immediately, and push the blame on Standard Chartered. We had already informed him not to use the Standard Chartered bank quite a number of years ago, and this had happened. The last few years it was our CITIBANK card which was being billed to, not Standard Chartered.

2) We had already cancelled and close account with Standard Chartered Bank eons ago, and suddenly they decided to bill us with AIA payment? Standard Chartered Bank excuse was that its because AIA still has the account open.

I'm confused, we had already closed the accounts with them, why did they open JUST because AIA has the account open? If anything, shouldn't it be that AIA come back to us for payment instead?

This is not the first time it had happened.
I'm wondering if there's anywhere I can bring this case up?
Thanks.