I play minecraft Xbox (not Xbox one edition) and when I try to load up the shop it says your purchase could not be complete maybe check your internet and my internet is fine I Checked it and is says your internet is doing good and I unlinked my mobile a

It was mobile account

Change the title to the description then create a shorter title

Thank you for your report!
We're actually already tracking this issue at MCPE-48149, so we will resolve and link this ticket as a duplicate.

If you would like to add a vote and any extra information to the main ticket it would be appreciated.

Quick Links:
📓 Issue Guidelines – 💬 Mojang Support – 📧 Suggestions – 📖 Minecraft Wiki