Pinnacle post installation lack of service

Pinnacle supp**** and fitted a new Centurion Electronic Gate Motor on 5 January 2019. The Motor carries a 24 Month Guarantee. Approximately 3 Months ago I contacted Nico at Pinnacle to adjust the motor as it opens and closes immediately instead of waiting to be closed by the remote. Pinnacle undertook to come as soon as possible to rectify. Subsequently I phoned Nico on 3 additional occasions . Each time he promised to come but did not do so Today I contacted other Gate Motor installers , and the Mother Board had to be replaced. This is strange as the unit was only 1 year old. This cost me R 2,600 which I paid because Pinnacle would not provide any post installation service . I urge caution to the public .I certainly would never use Pinnacle again.