The insinuation that just because someone may not want to use a particular communication channel (or conversely, may need to use a particular channel), that they then are not genuine in their request for help is disingenuous and self-serving. Someone may genuinely need help and may likewise genuinely want to use email because they do not have ready access to a phone, or find it vastly more inconvenient, and need help in a manner faster than mail or setting up a surgery appointment affords.