The fact that landlines are being phased out is encouraging individuals and businesses to switch to mobile only - albeit that it's usually possible to retain a landline number using VOIPIt seems that they wish to give a more personal service, but somewhat over the top.
I don’t think there is necessarily a problem with using a mobile phone. These days, with unlimited calls, and working from home. When I was at work over 10 years ago, I would use my mobile when out the office or needing to catch someone in the evening.
If the coat is a surprise, I wondered how you managed to obtain the measurements surreptitiously.
John