Useless Post Services!!

I had a relative purchase something for me as a birthday gift in April 2018. It was shipped here on 19 April 2018. It arrived in May 2018 and has been stuck at customs. When my aunt contact the Royalmail customer service department, they advised that SA Customs has lost the package. No one at the Customs department answers their phones or emails so I am becoming very irritated. It seems if you want something not sold in South Africa, you need to go overseas to get it and not post it as our post service is useless!