If a client wants to dispute a transaction, he must contact the merchant first. If the transaction on a Visa card is not complete, you should wait until it is finished first.
If the seller didn’t come to your point of view, or there’s another problem, you should call at 13-11-55, or 1800-931-678, or fill in the Suncorp visa dispute form and mail it to GPO Box 3, Melbourne VIC 3001, or email it to [email protected].
You can see the Suncorp Visa dispute form below.