Claire responded to the invitation to deal on Brenda's website with a valid offer, which Brenda immediately accepted, which was communicated to Claire by e-mail. Acceptance of the offer was without reservation, as no new conditions were suggested, such as a different price or a condition that, for example, delivery had to be carried out in a certain way. This had the effect of turning Brenda's email into an acceptance rather than a counter-offer or request for information. This coincidence between offer and acceptance means that a valid agreement was made between both parties, which created a legally binding agreement.