Help! Been treated unfairly and unjust. All negative and bad reviews which i have seen turned out to be true!

Firstly want to say that i was polite and nice about cancelling the agreement 2 days after i signed the contract but after getting no help and no cooperation, everything changed.

I contacted the vhi to ask them on how to cancel the agreement but they could not assist saying that they do not have my contract with them yet but thinking about it one would think that all the cancellation are done the same so they don't really have an excuse not to have been able to help me. After many phone calls asking for help on how to cancel and they unable and unwilling to help help me so i used the email address at the bottom of the contract where i found the number to phone them along with a PO address so i emailed them at ********** 2 days after i signed my contract to cancel because i wanted to notify them so long so that i won't lose my deposit after the 5 days and i even sent the email i sent via registered post to the PO box to make sure it gets received. After the 5 days i asked what is the progress of my cancellation since i have not received any feedback. So she says that she has not received anything from me as of yet but now apparently they do have my contract after the 5 days but could not help me before the 5 days since they did not have my contract. Anyway i send her the proof of the first email i sent and the proof of the tracking number of the registered post i sent as well. Today i received an email that says the copy of the contract i received clearly states how to cancel the contract and its too late to cancel now and i'm in a legal binding contract with them. If it was so clearly stated then why would i have phoned for help to cancel the agreement and even if i did email or post it to the wrong department it was still a vhi email and PO Box. They could have directed it to the right department or have notified me that i needed to send it to a different email or address as i would have had enough time to correct it if they initially responded to my plea for help. Is there anyone that can help me for i feel i was treated very unfairly and did ask for help to cancel but help was not given until it was too late so i did it how i thought it should be. Can not say it clearly states how to do it then obviously i would not have phoned and asked for help if it was clear to ME. All i want is my deposit back and this to be cancelled.