Samsung theme app issues

[sba]

Samsung themes store some paid themes are  going to be free but I can download thoes themes on my phone and my device running on Android 7.0 nougat but still i can facing this problem and I even try to clear all the cache file but still not happening can anyone helping me to solve this problem

[Nelly81]

try to reset your phone and try again

[sba]

I also do that multiple times but I still facing this problem

[Nelly81]

which device are you using??

[sba]

IAM using j7 prime

[MayaG]

I bought a theme from nano wicore labs private limited at rs.75 yesterday. But it's not available to me and still showing Buy option to me. Please solve my issue