Terrible service delivery

Bought a pump from them last year 2016, but now when trying to start it, it makes a buzzing noise, and pump doesn't switch on, was told it could be the motor.

Paid call out fee, the technician came 09/10/2017. He all he did was took his *****driver and loosened something at the back of the motor, he said the motor ran dry and seized and then left. Was later informed that it is a warranty claim.

It is now the 31/10/2017, haven't had any real response from them, I have been to the store to find out what is wrong. All they say is that it is a warranty claim and that my info has been sent on and someone will contact me soon.

How much longer must I wait to get feedback?