Standard chartered Bank Credit card division — No payment received

We are a Travel agent and issue quite a few International creditcard tkts against International creditcards for our clients.We had issued a tkt for our client on 17dec for amount Rs 211427 and till date have not rcvd the patment from standard chartered credit card division.They asked us the invoices/passport details and we have furnished them this too.If you call this office(call centre) they say it is still under investigation and nobody is able to tell us when we can get our payment.

We are at wits end....

Have sent three complaints to customer service but just get an automatic reply saying we will get back to you and this never happens.

This is the most frustrating experience in my 30 years of travel industry experience.

Can anybody give us any clue?

Many tks