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//If you have Windows 10, you can just link your laptop to your phone and sends SMS messages direct from your computer. Click the start button, type "Your phone" into the search box.//
That sounds an excellent idea, TC. Many thanks.
I've found the "Your Phone" app on my laptop. I now need a "Phone Companion" App on my phone. I'll have to look for that. I'll let you know how I get on.