1
.
-
an
____________________
is
a
document
the
seller
sends
to
the
buyer
with
information
about
the
product
bought
2
.
-
to
____________________
a
product
is
when
you
return
a
product
to
the
seller
and
he
gives
you
a
different
one
3
.
-
you
cash
something
on
____________________
when
yo
pay
for
something
when
it
is
delivered
4
.
-
when
you
don't
pay
something
immediately
,
you
pay
it
on
____________________
5
.
-
payment
in
____________________
is
to
paying
i
regular
intervals
6
.
-
if
you
are
not
happy
with
the
product
you
can
ask
for
a
____________________
and
get
the
money
bac
k
