Marketplace issue

Hi I am writing to tell you that there is a problem on the marketplace in pocket edition. I tried to buy the adventure time mash up pack it worked once but It didn't go through  so I tried it another 10 times and it kept saying delay one ever it went on for 30 mins and I couldn't get on a couple of times and so I tried turning WiFi off my other devices but still delays so I would like u to fix the issue please!