Acompany is more likely to lose current customers if:

a) the company is unable to resolve issues quickly and fairly.
b) the company does not offer a rewards program.
c) the company sends many advertising emails.
d) the company's service representative does not seem to have all the needed information from all the pertinent departments.

I’d say platform as a service (paas) or application platform as a service (apaas) or platform base service is a category of cloud computing services that provides a platform allowing customers to develop, run, and manage applications without the complexity of building and maintaining the infrastructure typically associated with developing and launching an app.

No, the only way you can mute the notifications is to disable notification sounds in the settings, the settings of your phone of