Dealing with the Waseetuka website for buying goods from websites

There is nothing wrong with dealing with the Waseetuka
website to buy goods from international sites in return for a fee paid to
the website, regardless of whether the fee is a set amount or a percentage
of the price, because it comes under the heading of delegating someone to
act as a hired agent, and that is permissible, so long as the goods in
question are permissible and the transaction is permissible. It is not
permissible — for example — to buy gold and silver through this
intermediary if the hand-to-hand exchange is not achieved. 

As the intermediary in this case is responsible for shipping
the product to the customer, there is no doubt that he is liable for the
item if it is destroyed or ruined, because he is a hired agent, and many of
the scholars are of the view that the hired agent is liable. See
al-Mawsoo‘ah al-Fiqhiyyah, 32/294. 

From referring to the website mentioned, it is clear that
that the website is committed to compensating the customer in the event that
the seller turns out to be one of the thieves of the Internet (i.e., a scam
artist), and this is also permissible.  

It says in Fath al-Qadeer (7/183): “It is permissible
to connect liability to certain conditions, such as saying: Whatever you
sell to So and so, I will guarantee him,” because what is meant is: I will
bear the consequences of this sale, so I am liable. 

With regard to conditional liability, what is meant by that
is a guarantee to the purchaser that he will get his money back if it
becomes apparent that the item sold is stolen – for example – or it is a
guarantee to the seller that the price (for the item) will be paid in the
event that the purchaser refuses to pay it… And so on. 

It says in Manaar al-Sabeel (1/360):  Conditional
liability guaranteeing the price of the item paid for is valid, because
there is a need for that, such as guaranteeing the money if it becomes
apparent that the seller is not the owner of the item, or guaranteeing the
price before the seller hands the item over. Among those who regarded
conditional liability as permissible in general are: Abu Haneefah, Maalik
and al-Shaafa‘i; it was also mentioned in al-Sharh. End quote. 

See al-Sharh al-Kabeer, 5/84. 

To sum up: we do not see any reason to prevent dealing with
the Waseetuka website for purchasing that which it is permissible to
purchase via the Internet. 

For more information please see the answer the question no.
34325 and
72210. 

And Allah knows best.