Trouble Purchasing Topaz

I purchased the 99p topaz pack but it didn’t give me the topaz’s and now it’s not letting me purchase anymore. I’m getting an error "error:error purchasing: labresult: unable to buy item (response: 7: item already owned)

Hi Nikki_Stevenson,

Sorry to know you are having this issue. Could you tell us a bit more information so that we can further investigate?

Phone model:
Operation system:
Wokamon version:
Do you connect to FB to save your progress? If yes, what’s your Facebook Display name?
What country are you from?

Thank you!