Wisdek online advertising Terminated contract for services not rendered. Wisdek used back door to bring site down Toronto Nationwide

Signed a contract with wisdek to promote business to be more visible on google. Paid for several months with high fees plus other fees that company kept changing credit card. Customer service was very poor with no calls returned and no follow up done on timely fashion. When ended contract Wisdek logged into the site where our site is hosted and changed the index file to make our site refresh every few seconds and make it impossible on our clients to enter site. 

Highly unethical with tendency to charge huge amounts outside the scope of the contract. In addition no services with value were dilevered. Very bad investment for any company looking to market on the net