No Aftersale Service on a NEW SWIMMING POOL

Bought a Fiber Glass Pool from Poolmate & installed by referral through Poolmate. One year later pool cracked and lost all the water. This is where things went wrong! Poolmate was now under new Management : NICOLE & HANO MARITZ. Don't answer calls, SMS's, WhatsApp's,E-Mails. Eventually promise to do necessary repairs & agree in writing to pay for material and I pay for labour. Nicole/Hano then close their business for Xmass and leave me with the bill for Material & Labour. Struggle since they re-opened 8th January to come back to do more repairs(new crack & chips)AND to recover material costs with no avail. Again not responding to ANY CONTACT FROM MY SIDE! Even Owner/Director Derek NOT RESPONDING! My opinion : Stay away from POOLMATE Blackheath!