Not sure what you mean here. The Spanner trial is a completely separate thing from the $300 starting credits. So if you use the Spanner free trial, you aren't s

Not sure what you mean here. The Spanner trial is a completely separate thing from the $300 starting credits. So if you use the Spanner free trial, you aren't spending any part of the $300 credits during that trial period. You can also start the free Spanner trial regardless if you've spent the $300 starting credits in the past.