Awful service from the word go!

Our previous fiber provider sold their client base to Supersonic, meaning I am now a Supersonic client without having a choice as to whether or not I approved of this migration. To date the only communication I have received from my new service providers are invoices and statements. Not even an email to announce that they were going to conduct their migration a month after this was suppose to take place, on a weekday, during a lockdown when 70% of the workforce is working from home and would need an internet connection. When I finally got through to the poor sod on technical assistance (the number didnt work for the first 2 hours hours of no fiber) I was told that he is not the person to speak to regarding this and that I should just know that this migration was taking place. Their Whatsapp number works to the point where someone reads your msg but doesnt respond so what the hell is the point of having this service. Is it just a way for me to vent to a random whatapp number? If this is how you guys are wanting to start our relationship, I dread to know how this will end!!! Very unhappy at the disgusting service so far!!!!!!