That's so true. Online shopping can be quite risky.
I'm sorry about your experience with the pendrive. These sort of issues can make one pessimistic about purchasing things from online vendors especially if there is no warranty, refund policy or a guaranty that it can be returned when there is no client's satisfaction.
Thank you for your kind words. The powerbank has been serving me quite well since the beginning of the week.
I hope your trust in online shopping is rekindled because it saves a lot of stress.