This company is failing to refund what is due to me

Im looking for a refund from this company since I cancelled contract within 5 days, they told me I must wait for 30 working days that has passed long ago, I went there personally to cancel a contract and signed papers but when I signed to follow up I was told cancellation was not captured, which is not my problem as I still counting 30 days from the day I was there,

They are not responding to emails, their phone is always engaged, when you finally talk to someone they cant help they actually dont know what they are doing, you want to speak to a manager they demand to speak to you yet they cant help you,

I only went there to enquire and I found out that they are not what i was looking for and I dint want to sign but the receptionist convinced me to sign a contract saying I can cancel within 5 days, I didn't know that was a catch

I want my refund in cash asap