Bad and inconsiderate company

Due to financial retraint, I called mweb on Moday, 4 may, since 1 may, Friday was apublick holiday, to give notice and cancell my ADSL. They insit on still debeting my account end of may because i did not give them a 'Full calender-month" notice, and they said that the public holidays and weekends are not an excuse. I have been with these guys for 4 years, never missed a payment and they are taking me on because of a weekend? the other thing is the fact that they do not have any cuatomercare email contact anywhere on their website. they are inconsiderate and out of touch with the struggles that many South Africans are having right now under this pandemic. Bad company!