You are probably aware of this, but did you send the text using the +12225558888 format? Most of what I have read about 3-UK is positive. Also, the sims are already data and roaming active. So, not sure why whatsapp did not work for you. As long as you have the correct APN. Also, You may want to to go into the phones menu and make sure allow roaming is selected.
Quote:
Originally Posted by powerlifter
I was in Zurich. I tried to text a U.S. number the text never went through. I tried texting in U.S. same thing never went through. I am in Oman now. It is way too expensive here to try it. tried to use WhatsApp did not work.
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Phones: Xiaomi Mi Mix 2, Samsung Galaxy A50, ASUS zenfone 3,
Sim cards: AT&T (Contract), 3 UK, Piranha Mobile