no after sales-service or honoring of guarantees

The owner of the company was very quick to take my business and executing the work, ie: drilling & connecting a borehole. However he took several short cuts, which I had to get sorted by another company, and when I needed after sales service due to a problem occuring (borehole stopped working, tank did not fill up any more), he never answered my calls or messages (unless I phoned from someone else's phone, in which case he made promise after promise, which he never kept)., He never came back, never kept a singe appointment. He is not honoring the guarantee he gives, and despite many, many promises I still have not received the promised borehole report or a proper invoice. I cannot recommend this company at all. It is very disappointing, that after spending so much money, one cannot get any after sales service. I have no option but call another company to resolve my issues.