A company does not want to charge me

Complaints Corner
1
I ordered a few spare parts from a well known producer of electronic goods, they delivered all but one, and they charged me only for those (which I paid).

As for the remaining part they kept postponing it for a few months, I kept reminding about it and one day I found it in my mailbox, without an invoice.

I tried to ask them maybe 3-4 times to double check their accounts and possibly charge me, but the kept saying everything was settled.

The outstanding amount is about 35chf, but it looks like they do not want it? Should I forget about it or perhaps should I caculate it myself and transfer it against their will?

2
I wouldn't worry about it. They'll invoice you or forget write it off. Either way, you don't need to do anything for now.