Is there a "cool down period" for how often a credit card can be used to top up prepay accounts? I'm trying to top-up four separate accounts, the first one went through successfully, however the second keeps on being declined. I've tried both online and via the 200 automated service. I think I had this problem 6 months ago when I was trying to top up two accounts at the same time.
If there is a cooldown period, can you tell me how long it is? Is there a way to avoid it? I am currently going into each account individually online to top up, would it be better to use one account and top up the others from the same online service with the "top up another number" feature?