50GB Preload Data Pack - roam to USA

[GPO]

Hi, I have bought a 50GB Preloaded Data Pack, so that I can use my phone in the USA using Go Roam. 

One of the prerequisites before roaming is to make a chargeable event such as a call or SMS.  However call and SMS are unlimited (free?) within this plan.  So how do I make a chargeable call or SMS?

Thanks

[Steve-b]

You could try making a donation to a charity by text - e.g. How to donate to charity by text | Macmillan Cancer Support 

[GPO]

Thanks. How do I tell what numbers are chargeable (outside of included minutes) for a 3 Dreloaded Data Pack PAYG SIM?

[sc1999 · Accepted solution]

As usual 3's ts&cs are as clear as mud. Try 0845/0870 numbers as these are usually chargeable. Also check the reviews and questions on Amazon as they may help.

[sc1999]

Some codes are chargeable you need to find one of those wherever you are.