when doing an RMA with DHL, specify that you have to use locator.dhl.com to find the DHL point
I had to do an RMA and was sent a DHL shipping label and told to go to "any DHL point". Turns out that only some DHL point would accept the package, specifically the ones listed at https://urldefense.com/v3/__https://locator.dhl.com__;!!Bt8RZUm9aw!oaeA4l5s8dAdvc2fJVeZvlojF4YQZrjSnzAZD03I6-RYcy1cPAw69XDWwQAWV3vg$
Other DHL POPs were not accepted.