Cant buy coins

Every time I try to buy coins it tells me that there is a problem with itunes and to contact itunes support.

I restarted the app and I was able to purchase coins. I tried to purchase another batch an hour later and it gave me the same itunes pop up.

I restarted the app and it still gave me that message. So I went into itunes and I signed a liscensing agreement or whatever, and then when back into haypi and still couldnt buy coins.

At that point I emailed itunes support and they told me it was a problem with the in game provider.

I've heard from a few players that they are having the same issue. Is there a way this can be fixed, or will I be buying coins via pay pal from now on?