UPS finally refunded the overcharged tariff

Last November UPS mistakenly charged me a $684 tariff on $355 worth of computer parts shipped from Europe. It was shortly afterwards reduced to $51.30, but I had prepaid the tariff to avoid warehouse fees, so UPS owed me $632.70. They finally issued the refund in July after repeatedly E-mailing their accounting office in India approximately monthly. (Phone number? Ha ha ha.) I don't know if these…