Roborock review: Wrong vacuum spare parts shipped

I ordered spare parts for my vacuum cleaner s6maxv
From roborock via ali express vancouver bc

They shipped wrong parts as follows:
4 wrong oversized filters
2 wrong brushes without bristles

I called, e-mailed, and communicated with roborock and ali-express via their chat
I sent pictures and measurements of original offer and pictures of received parts showing
Brush without bristles and pics of oversized/ incorrect filters five times!
I started dispute on december 2, 2021

They insist, that they (ali-express and merchant) can not establish my claim?!
Pics show so obviously that brushes don't have bristles and filters are
Oversized! They suggested that either I ship back incorrect parts back at my expense for full refund
Or they refund only $12.00! Shipping back wrong parts would cost me more than $40 by canada post
I suggested that they pay for return shipment and fully refund, or that just to settle, I agreed to
Partial refund of $45 without returning wrong parts.. Aliexpress advised and I quote:
"sorry, we have not identified this problem from your proof.." hope you have a great experience shopping with aliexpress. Best regards, aliexpress case management team
My five year old grandchild can see the difference between picture of brush with and without bristles..
Beware of ordering from china/aliexpress.. After they ship wrong parts you will be on hook for return shipment, which will be at least half of the cost of ordered parts!

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