torn teats

i bought a set of bottles on the 29th june, 1st teat was torn within a week, i threw it away and the same incident happened the following week, i emailed them explaining they said i should take it back where i bought it and asked if i still have the receipt i said no , i went to the store and told them i need a reprint they said they can’t trace it coz i don’t have the benefits card tommie tippee tells me they can’t help me just bcs i don’t have the receipt,They are not fair