Gumtree does have a customer service telephone number.
Our team are available on this line from 7am till 9pm Monday-to-Sunday. This includes Bank Holidays.
Our phone support team is very busy, so prepare to wait in a call queue.
With this in mind we do ask that you check our onsite help to see if any of our FAQ's help you. Our onsite help is fairly extensive. Look here.
If you do need help our regular Gumtree users prefer using our live chat system. Don't worry there is a real person at the end of the chat. You get the best support here and also the most immediate.
If you still want to try calling us our number is 0203 59 88081.