Hi Everyone, hope you are all ok!

I will be going on a trip on the back of a motorbike - 30,000 miles, starting in Buenos Aires, down to the bottom of South America, all the way up the west side through Argentina, Chile (I hope) Bolivia, Peru, Equador, Colombia, Panama, Mexico, US, Canada, Alaska, back down and across to New York..

My question is about mobile phones, as I have never done a trip of this kind before I don't know how it works. I have a UK quad band phone that has a UK sim card in it, I will want to text people at home. Soooo should I put credit on the UK pay as you go sim before I go or buy a new sim when I get to Buenos Aires?? Are they easy to get hold of and add credit to?

Any idea of the costs involved in texting back home and recieving text messages?


Thanks!!