SARS dfoes not keep to agreements and then threatens people after failing on its agreement and returning *******ly deducted money from my account

for the 1st time in my life I owed SARS money. I got a tax specialist and went through the process to get an approved DOP. My DOP was up to date. Imagine my surprise when the end of March (after even receiving an e-mail from SARS to remind me to pay my DOP on time) they clear my bank account. Huge fights and a week later SARS returns the funds ( 2 April). All debit orders obviously failed at huge cost to myself (SARS indicates they are not liable for this even though they took my money with an up to date DOP in place.. On receipt of my funds back I immediately paid the DOP. I then got an SMS stating I owe SARS the remaining amount. I have followed up with SARS to no avail. The lady working on my issue is no longer working on the issue and will not supply details of the new person. The office of the commissioner ignores my question around the DOP even after many direct e-mails to him and the Commissioner and Deputy Commissioner offer no response even though they are copied on all correspondence. Today I get an email saying the remainder is payable within 10 days - why - I have correspondence showing an agreed DOP which is up to date. I really need SARS to explain what is going on but I get no response clarifying this issue! How does one get this resolved - Do I need to go to Treasury and the Minister of Finance to get a response from SARS.