Very poor service

I purchased an international ticket through Travelstart with Taag Airlines from Cape Town to Portugal on the 3rd February 2020 ***. This flight was scheduled for December 2020. Covid, as everyone knows set alot of restrictions on flights and travel. Travelstart put it on themselves to regularly change my flight details to accommodate the new restrictions. This is when I decided to cancel my ticket and request a refund. This request was done Via email to Travelstart on the 5th December 2020 and I was told I would have to wait 12 weeks for my money. In March 2021 when I requested an update I was told I never put in a request and must wait a further 12 weeks. This is not the case as I have proof that I did indeed send a reply to their email to proceed with the refund. 13 September 2021 I received an email from Travelstart requesting my banking details in order for them to process the refund. I sent them all the information they required as they requested. 7th October 2021 I requested further updates and was told that my refund is pending with the Airline??? but that Travelstart has received the authorization to process the refund. This morning 18 October 2021 I asked for yet ANOTHER update and received the following reply: "Please be informed that your booking is on the necessary queue for the refund to be processed, we will get back to you accordingly." 10months down the line I am STILL waiting for my refund. I have been sent back and forth between Taag and Travelstart, one blaming the other as to why I have still not received my refund. How much longer must a person wait? This is completely unprofessional from Taag Airlines as well as Travelstart. I will not recommend Travelstart to anyone.