Why does the Bulgari cordate telosma sample taste different from the big bottle?

1. Is the concentration of edt eau de toilette different from that of edp eau de toilette, but the concentration of eau de toilette is stronger?

2. The sample you got at the counter has polluted the taste of the counter more or less, just like many people think the perfume smells good when they try it at the counter, but it's not the case when they buy it back. In fact, the smell of cosmetics and perfume in the counter is mixed, which interferes with the sense of smell. Usually, I think it's normal to buy something at home that is either directly smelled by the counter or the strong one directly given to you by Pakistan.