Sometimes it is just better if you do the job yourself.
After having Dyno rod in 3 times, a pump engineer in who then flooded our house and spending over £400 ($800), we still had a blocked drain and no bath/shower/toilet/sink at the top of the house. So my husband decided he couldn't do a worse job of it if he tried himself. So yesterday afternoon, he took all the pipe work off the back of the house and replaced it all. He found a blockage in a bend in the pipe and now the drainage is working just fine. He is very proud of himself. This makes me soooooo nervous! But I'm not complaining. At last I can have a shower!