[mothered]

how often can you dna?

^ The timing applies to every method.

i can dna and wait some months and dna again without doing any order in the time frame?

To play It safe, use an aged account, allow a sufficient gap (5-8 weeks) between each SE, throw In a few legit purchases and do the same with low value Items.

Be sure to also take note of the type of carrier servicing all deliveries. If It's the same company delivering to the same address, It's likely to raise suspicion.

and what's the max value that can be dna?

There are no hard and fast rules.

Use common sense and good judgement.