I (like most support staff) could resort to asking if you've RTBM, for the rest of the information we need !
On what you've given us, I can tell you only one thing - the helpline is as you say, 0870 240 8026.

We need to know a lot more like which model of fax and who it is made by (originally, not the pretty badge on the front). Most of these are available from the User Manual (Hint: Try the last page !).

As I can see you are a newcomer to our Forums, have you seen and read the post at the top of this one entitled ** PLEASE READ BEFORE POSTING A NUMBER REQUEST **, which gives a lot of useful information on how you need to provide information for us to assist you, and how to go about finding it.

Once we have that important info, we can TRY to assist you better. We are not magicians, psychics, etc. and we don't have a massive book with access to millions of alternative numbers. We just know where to look at publically available informaton on the web, and what questions to ask people when we are able. Other skills are also helpful but most of it comes down to what information's available out there. 

Try ringing Olivetti UK head office and ask to be put through to support.

Olivetti Tecnost UK Limited
Olivetti House
2, Canon Harnett Court
Wolverton Mill
Milton Keynes
MK 12 5NF
United Kingdom
Tel: + 44 1908 525400
Fax: + 44 1908 525401
mail: ukinfo@olivettilexikon.com
WEB: www.olivettitecnost.co.uk

Olivetti head office (new phone no. 01908 547980) put me through only to two successive voicemails when I asked for fax support. 
I'm getting an error message ("check print head") and although BT have helped me on their 0870 number, they kept me waiting for ages. A repair agent would help, I'm sure. Thanks.

p.s. yes, i have rtfm

I have a BT Paperjet and the number for service contact helpline is  0845 0520052  not a geo number I know,but better than 0870, I have rung them on Saturdays (cheaper) and found them very helpful even when machine came out of warranty.