Product initially sold for 2 x 5l € 32

2 times they delivered me one can, instead of completing the order, they asked me to return the product.
The second time they preferred to pay me.

Now the product is 1x5l to 32 then it is found to 21 also

Not sure this is fine on the spot.

Incidentally my first negative comment was censored.
If celui_là is also, I would explain what happened via social networks