RAIN 5G cancelled but not cancelled by Company.

Poor Service point. no emails are answered and no Facebook request and no Twitter DM or posts. I cancelled my 5G in mid April with the company. I understand have to pay for may but 30 days notice was given and still they process a payment on my card for the 01 of June 2020. This is not acceptable and there is now way to get hold of the accounts or billings department. they are non existent with there customer support. 100's of users complaining about poor service and poor speed.