Shoddy work done by 24hr plumbing

24hr plumbing did a job for me on the 18/04/2021 i was given a 1 year guarantee on the job and since the repair piping has blocked twice already every time we call Rudie he says he is not in gauteng. I have paid for another plumber to come out to repair and stated that 24hr plumbing did a shoddy job and thats the reason for the blockage all i want is for this to be resolved but if its not i will be reporting this business sueing the owners for my money back and for the money i have had to pay