I got rejected for a credit card - where else to apply?

thats right..

i am happy they at least give 1+% on the money you put in for secured credit

If you have the money to put in a locked deposit as collateral, you could get a "secured" credit card. Basically the only requirement to get a Thai bank secured credit card is the locked deposit. Typically a Bt100K deposit will get you a credit card with a Bt100K line of credit. But with this type of card you are basically providing your own line of credit based on your deposit....the bank doesn't have to worry about losing money because they have your money which serves a collateral.