BlackBerry Power Saver Case for Q10 and Z30

I bought power saver cases from amazon for my z30 and Q10. Right after a week, now both the cases seems to be loosened. Phone falls freely from it when hold upside down. Is the original pouches like this? They claim it to be original, but is ready to refund for it. I have also bought q10 charger pack, but it seems only battery came with it is Original. Charger is duplicate. They have accepted to refund for all the items. Can you please clarify about cases??
Also is there anyway to check if the battery is original? Coz I had my previous battery pregnant, but I feel that holds more power than new.

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Waiting for the reply from somebody who has it so that I can make the replacements and get a better one.

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Nobody has the original pouch of z30 and Q10 to help with a comment?

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Nobody here?? I am waiting for a reply since 3 days...but no replies yet....

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Pee peee....i am still waiting ;)

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