Cancel norton family premium

I purchased norton family for managing Internet access on kids ipad, iMac and windows pc.  I have now found that it does not support iOS so want to cancel and get a refund.  Tried norton online chat.  No response for an Hour, can't find a phone number.  Can anyone suggest how I do this.  Not impressed with the suggested 24/7 chat no wait time.  Can anyone help me with this.