cancel reservation while waiting for payment

[Ron22]

My guest inquired, and I accepted his request.  There was an issue with his credit card, so I got the message that it's waiting for paayment.  He has sorted that out, but wishes to change the dates of his booking, which is ok with me.  I cannot find any way to change the dates, or cancel his booking so that he can rebook for the correct dates.  I also cannot find, after much searching, any way to actually contact, hopefully call, anyone at AirBnB to discuss this or deal with it.  I am in Canada.

Thanks

[Marzena4]

@Ron22 First of all, remember to never cancel anything yourself. In your case, ask the guest to use the option to request a change to the reservation.