HTH - No accountability or customer service

We bought HTH monthly float a week before Christmas, it emptied in a week; we got another one, that too emptied in a week and turn our pool green. We had the water tested at the pool shop who sold us two bags of chemicals to treat the water. They told us to put the new floater in after 24 hour, which we did. As we put the floater into the pool it made an explosion noise - it had not exploded but imploded, like something sucked the air out of it - note that the third float was a more expensive one. Feedback from HTH - the pool has too much stabilizer (like we could not guess that from the green colour of the pool) and the 3rd floater did not explode. 1) No remedial action for our green pool from the first two floaters and 2) The rude rep took the 3rd floater and we have not been reimbursed - it is still full of product. I am appalled at rudeness, lack of customer centric attitude of HTH and specifically the rep we are dealing with. She is argumentative and we get the distinct impression of a total lack of accountability on the part of HTH. We will never again use an HTH product, I would rather empty the pool and turn it in to a cactus garden.