Stuvia not reliable

Stuvia, do not by any means take control over the content they sell. I have bought numerous content that is not correct and falsly advertised from the seller. If you request a money back as Stuvia brags about on their website there is a long procedure for this to happen and they take very long and do not even pay back you money they only send you a Stuvia voucher to buy more ****py content. Very disapointed