Technical support by phone would be best achieved using Whats App as this would allow video connections and make it much easier to view your problem and guide you back on track. In a previous questionaire, everybody (except one person who does not have a smart phone) said that they were either already using Whats App or would be willing to install it on their phone. If you have used the booth wifi connections before then this will not use any of your 4G data allowance.
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