Sean D.

They are clever scam artists.
They overcharge for every item.
They then ask for extra money for selected items to drain more money from you.
They then over weigh items so they can further steal money from over charging for post.
Ontop of that the post insurance is a scam, if items arrive broken they refuse to honour it.

I caught them over charging for items and asking for extra money by contacting one of the sellers who confirmed it was all a scam technique.

Then they fight to prevent refunding you, demanding you cancel dispute before refund fully knowing that you lose all buyer protections by doing so.
They then add a higher amount of money to your balance to try convince you into doing this... they have utter control over the withdrawal process so they can simply wipe the balance and leave you completely robbed.

These guys are utter scum to the highest levels.
Never EVER use these people they will rip you off steal from you.
YOYBUY IS A SCAM.