Shocking, ********** service from SBSA for almost 3 years to get debt review status removed from my name

Shocking, ********** service from SBSA! 2012 to 2017 was under voluntary debt review - diligently paid my dues of what i owed however SBSA despite court order continued to charge interest. Almost a year of trying to get this resolved and i'm talking hundreds of emails and phone calls eventually took this matter to the banking ombudsman who in the end ruled in my favour, and received paid up letters from SBSA (25 January 2018 02h21 *** acknowledged reciept of the Form 19 clearance certificate) November 2020 i am trying to purchase a house, enrolled on all credit bureaus to ensure my credit score is good and nothing negative reflecting only to find out when put application in to banks that SBSA still has my status as under debt review. Tuesday 10/11/2020 I forward all the clearance certificates and Form 19 to *** as requested when i called the call centre at 08h30 - received auto response that turn around time is 5 days. Monday 16/11/2020 i call call centre again, at 12h15, consultant says cannot see any action on my request - he asked if i have proof of clearance certificate sent in 2018 so can escalate this - emailed this proof at 15h44 on same day. This morning (18/11/2020) at 0845 i call call centre again - 5 working days after original email sent - only to be told can see that clearance certificate was sent in 2018 but cannot tell me why the status hasn't been updated this will need to be escalated and normally respond within about 2 days. I asked if there is a supervisor i can speak to, no only work on emails, i ask for an email address - you can send a mail to *** which is same email address i send everything to 10/11/2020 and NO action has been taken. I ask if there is anything else i can do - no must be escalated. As i am sure you can understand i am at my wits end, i am going to lose the house because of SBSA's PATHETIC service - for five years i paid what i owed every single month without fail, i paid my dues and got my clearance certificate January 2018, which SBSA acknowledged receipt of yet still have my status as under debt review. I don't know what else to do, i am being shoved from pillar to post and being told to wait but i should'nt have to.