How I was robbed by clever seller on Aliexpress?

The sad part of this problem is judgement of aliexpress who do not accept my evidence for no reason. And decline refund for package

Ordered:

Battery + 3 Screwdrivers + another tools

Battery + 3 Screwdrivers + another tools

As seller send me pictures

Weight of package is 35g without battery

And 42 g with battery

Received:

NO battery – 5 screwdrivers + another tools

NO battery – 5 screwdrivers + another tools
NO battery – 5 screwdrivers + another tools
42g weight of whole package

When he added 2 more screwdrivers it has the same weight as the missing battery!!!!

So for 27 USD i just get 5 srewdrivers and fer another tool :'(

Why is not accepted my evidence? NO REASON! They need weight proof from post office, that is online:

https://www.postaonline.cz/en/trackandtrace/-/zasilka/cislo?parcelNumbers=LT266047851NL

After added this proof, they close the dispute and did not tell me: „the evidence you provided was not valid for your dispute case“

My opinion, it is exactly what they want. Why is unboxing video not a good proof??