Unfortunately i cannot give zero starts otherwise ...

Unfortunately i cannot give zero starts otherwise i would do. In 15 years at my current address i've have an issue with the drains once, on this occasion i instructed the Able Group to clean the drains. The engineer arrived swiftly and cleared the blockage, or so i thought. a week later the drains were again blocked, i contacted their customer services to be told that i would be charged again for them to be cleared. Charged again for not doing the job fully in the first place??? Safe to say i didn't have them back and instructed DynoRod to complete the job.