Review on Panasonic eneloop pro AA Ni-MH Rechargeable Batteries, 8 Pack - High Capacity and Pre-Charged by Korakod Khun-avut ᠌

I called the support service 3 times, at first they gave me the seller's contacts, I told about the problem that the batteries do not work, I tried to charge them in different chargers, but after charging, I insert them into the flash (I have 5 of them) and neither one flash, the batteries do not work, the indicator says that they are discharged, one battery sees charging every other time. I explained all this to the seller, he asked me to send a letter describing the problem to the post office, for a week no one contacted me. I tried to call the seller again, but no one picks up the phone. And only from the third time market took over the solution of the problem. But the problem hasn't been solved yet. Addition I have been a loyal customer and customer of this company! I bought batteries, they turned out to be not working, they refused to return the money to me, since more than two weeks had passed and the integrity of the package had been broken! Excuse me, but how to check the performance of the batteries without opening the package?