Poor Service

My wife called out a plumber on the 12 of Sept 2020 to attend to a blocked drain and was told that it was caused by tree roots and quoted R1950.00 which she accepted and paid. The work took less than one hour to complete. On the 23rd of Sept my live in Domestic noticed that the drain had become blocked again and was reported to Elite on the 27th Sept as we were away at the time. I spoke to Gideon who informed me that there would be an additional charge of R850.00 to open the drain again as they only offer a 7 day warranty on blocked drains (Roto Router offers a 14 day warranty on the same service). I opted to get another plumbing contractor out on the 28th of Sept who manually removed a large section of roots from the same drain for R1370.00 and offered a 30 day guarantee. On the 1st of Oct I phoned Elite Plumbing and spoke to who I believe is the owner indicating my concerns on the poor service received and requested a refund. I was rudely told that there was no chance of a refund and if I posted a bad review on social media or Hello Peter he would come and sort me out as he has my address on file. I have worked in the construction industry for 35 years and am surprised at attitude of the owner and certainly would not recommend the use of their services.