Unprofessional and bad service

I received an email today from UPS stating I must duties and taxes on a care package sent to me from the US. Mind you I did not know this parcel was sent, I found out yesterday when the sender asked for a contact number for the delivery of the parcel. Back to today's email. After looking at the invoice, I noticed there was an 'other govt fees' of R448.50 on the invoice. I queried the fee and got a one-line answer "Is an inspection fee charged by Customs when they are inspecting your package" I immediately went to SARS website to see what this is about and could not find anything about them charging an inspection fee. The package is valued at $77 (R1,493.99) Total invoice from UPS is R1590.02, which is more than the value of the care package. Another issue, according to track and trace the package arrived 13 September and they only contacted me today. A week later? This is concerning since at the bottom of the UPS email they say this: "** Please note: Customs will raise possible penalty of R5,000.00 for late clearances not done within the prescribed time (14 day’s) from the date the parcel arrives in the country **" Which means UPS is expecting me to pay this money quickly or I pay a penalty. How can you take a company seriously if they make grammatical mistakes (day's instead of days) and if there is no official branding or bank details on their invoices? Bank details are in the email body. Botton line, I think you are overreaching by charging an inspection fee and your service delivery is very bad, since the parcel has been in the country for a week already.