Creek To Coast Concreting Pty Ltd

i got this company to do a stenciled driveway witch had underspray between what was ment to be gaps and the coat was un even it had high spots were to much paint was put done and these spots are now very slipy then they tried to grind the paint back to concrete were the gaps were ment to be and then re sealed it, now were they have grinded it has gone yellow the the reseal coat they put down bubbled they tried to reseal it a thired time and guess what it bubbled again so put this all together