We likely have some sort of a block in our sewer outlet, causing backflow in the toilet as well as shower. Bell scheduled us within the week. He said he would come in the afternoon. On the day of, we needed to run a quick errand, so we called around 11 to check when he would be coming. Once again, he repeated it would be in the afternoon, and not for another 1-2 hours.
He shows up 10 minutes after we hang up. We had house guests. He insisted that he knew the issue and got the house guests to let him in. He used a plunger on the toilet and left in 15-20 minutes, billed us for the minimum 1 hour. When we called him asking why he came at 11 instead of the afternoon as he had told us, his reply was, "I cannot tell you the exact second." He wants us to schedule him again for an additional charge.
Problem wasn't fixed at all. Next day, the guests found the spare bathroom overflowing again. Not calling him again.