NO aftersales support

recreantly i have decided to move to microfiber as my ISP due to the better line speed. when i asked them to contact me the do so very quickly witch was very nice but i told them i have to give 30 day notice to my existing ISP that i want to cancel the service with them and metrofiber said it is fine they are making a note that it must only be switch on, on the 01/06/2023 and i also told them that im not the main house im in the cottage that they also made a note off. but when the guys came to install they said no they cant because no one told them its a cottage and i have to place an order again, so i send an email to the sales guy and he said he will sort it out and after a few days they came again and installed the line and router. after the guys left i changed the password and name on the router and then connected to my existing ISP router again, after a few days i switched it off as i did not want to use it until the next month but then i got a surprise email and sms saying i have an invoice for the connection fee and pro-rata but its for this month and not for the next month that was agreed on, i then phoned them and was told i need to send an email to the mail i got the invoice from, that i did do but after getting ne feedback after a few days i phoned again and they said they see the mail but they must speak to a supervisor and then no communication back so i phone again and het the same answer. long story short they have zero after sales support and they do not get back to you as promised so they are not a good choice for an ISP