if i have purchased 50GB of cloud storage and if 90% of it is utilized can we automatically buy additional 5 GB ( example)?

Yes, you can increase the volume by an additional 5 GB using the Modify Volume option in Actions for volume.

if i have purchased 50GB of cloud storage and if 90% of it is utilized can we automatically buy additional 5 GB ( example)?

if i book capacity reservation for a future date is the rate i have to pay from today till future date is the same? ( then i can take from current day as well)

if we decide to scale down service and we have to download data as part of backup what tools are to be used?

is there a way we can schedule services to STOP and START at a predefined time?