Lloyds - Poor Client Service

When I came back home (SA) in 1999 I left the balance in my Lloyds account thinking I might go back to the UK. Now 20 years later I am trying to get that money transferred to my SA account. Communicating with the people at Lloyds is an utterly frustrating and unpleasant experience. They do not listen to their clients. The bank insist on using the postal service which might be working efficiently in the UK, but SA postal service is slow and unreliable. I've told them this at numerous occasions but they just copy and paste the same answer i.e. that they need the originally certified documents send by post or delivered to the bank. I am currently in South Africa, and not planning a trip to the UK. The Covid pandemic is also not helping this situation. Where it would normally take post from the UK about 3 - 4 months to reach me, it now takes double that time. The bank posted their response in a letter format end of February 2020 to the documents I sent late January 2020 - I received that letter in my post box on 11 September 2020...SIX months later! Irrespective, they insist on normal mail. I am so frustrated and annoyed with their complete ignorance of my situation and total inflexibility to the challenges of getting a letter to them and receiving their letters. The money in my account is not that much and trying to get it transferred will eventually cost more. But what can one do? If you do not comply with their requirements, they simply don't assist you. My wish for them is that they receive the same kind of service in their private matters as they are giving their clients.