How to call customer services 4445 from abroad

[Classicus]

Hi, I'm new to O2.   I've got a sim card and topped up with £10. 
I am abroad, when I try to dial 4445 or +444445 I get the local service provider recorded message stating something like "you call cannot be completed as dialled".

What am I doing wrong?  I really need to speak to "Customer Services" to understand more about the Pay As You Go , and whether I can get a better deal.

Please help!

[MI5]

@Classicus 

Number to call from abroad in this link https://www.o2.co.uk/contactus

You can also ask us your question?

[Classicus]

MI5L Thank you so much for your quick reply.  But I couldn't find "the numbers" on that page!  Could you please guide me as to where the numbers are mentioned. 

I have several questions as I am acomplete NOVICE.  But I'd like to sort out calling 4445 first.

[MI5]

@Classicus 

Customer Service Number Charges

From your O2 mobile	4445	Free
From a landline	0344 8090222	Standard UK rate
From abroad	+44 7860 980 202	Free†

[Classicus]

MI5:  Thank you.  It says "From your O2 mobile : 4445".  When I call 4445 I get the option displayed on my mobile saying this +444445.  Whe I click CALL, I get the local service provide message "you call cannot be completed as dialled".

I wonder if being abroad, I need to add something else, like the * or #    .. or something?

[Classicus]

I remember reading on O2 website that in some countries you need to add some characters to the number, something like * and #, but I cannot remember exactly what to and how to add them.

[MI5]

@Classicus 

You need to use the "from abroad" number as in the post above.

+44 7860 980 202

[Classicus]

But  I don't want to make a phone call.  I really need to phone 4445 (not +44 7860 980 202).

I think I founf the cause of the problem.  It is probably "a network problem".   The device scans for available networks and finds only the local one - NOT O2 network.  Whe I dial 4445, the local provider then responds with the message "your call cannot be completed as dialled".

I will try to look for a solution assuming that it is a O2 network problem.

In the meantime, I will ask the questions I have in a new post.  

Many thanks MI5 for your input.

[MI5 · Accepted solution]

@Classicus 

Calling 4445 from abroad is not possible.

Calling  +44 7860 980 202 (free) is possible and is just the same as if you were calling 4445 in the UK, so I don't understand what you mean by not wanting to make a call?

[Classicus]

Thank you for this information.  I thought calling +44 7860 980 202 from abroad is not free.