[mothered]

It would be the PEB method buying something heavy like a food processor and 1 or 2 high end phones and pay only for the food processor

Don't hit both phones.

The likelihood of a picking & packing error on goods of that nature and value Is slim.

I guess they do not have CCTV, I do not know if there is any way to know if they still do not have.

Perform a practice run/trial SE.

I read a month and a half ago to a guy who said that it worked both DNA and EB in this store if it was less than 3kg

What was the weight of the Item(s) he EB'd?

I could do DNA but I would like to wait for a while so as not to raise suspicions among the delivery companies.

Why do you believe the DNA would raise suspicion with this SE?