Hello @Arlene17,
Lovely to meet you.
I hope you don't mind, I've made your post into a new topic here in the Community Help board to make it easier to find.
In regards to your question, if it is saying you have an account already, if you have forgotten your password, you can reset this - there is a useful Help Center article providing step to step information on how to do this, click here. Once you have logged into your account that will probably enable you to book the listing you are wanting to book. 🙂
I hope this helps. Let us know how you get on.
Lizzie
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Thank you for the last 7 years, find out more in my Personal Update.
Looking to contact our Support Team, for details...take a look at the Community Help Guides.