LinkedIn automatic billing after trial period is ridiculous. The price is far too high and now I have paid for a service I do not want.

I only wanted to use the trial and see how it worked and now I am sitting in a position where you have taken the money out of my account and I do not want linkedIn premium or the recruiter account. I want my money back and it's near impossible to contact LinkedIn via the site. You can't force people to input details into a trial and automatically lock them into a subscription they don't want. There should be no need to enter a card into a free trial. Let alone automatic billing after that period. Please refund me my money as I cannot afford to pay such a hefty fee for a service I do not want.