I have done my biab infill on the 15th of April , on the same day they started chipping , I have taken pictures with the dates and send a message to the nail shop , they offered me an appointment but instead of re do the infil free of charge as all the nails were chipped after 2 weeks they fixed 3 nails and left the rest , they told me to pay £30 if I wanted to redo the infill . I have been doing biab for the past 2 years and it last for at least 3 weeks with no chipping , very disappoint!