DH Plumbing N Son

We called Dave on 1/5 to have our drain cleaned, due to our work schedule our appointment was on 1/6. He came out on 1/6, my husband was running late and our neighbor let him in. He cleaned the drain and said there was a 30 day guarantee. I called on 1/12, 1/15 and today 1/17 when it backed up again and again. I have yet to hear back. I can get it to clear with when I take a plunger to it but feel I shouldn't have to deal with it if there is a guarantee. $150 to get your pipes cleaned may seem like a good deal but it's only temporary and they don't back up their guarantee. Save yourself the time and hassle and call Roto Rooter or DuPont. If I receive a call back I will edit this review but I don't see that happening.