I just received today my Berkline 13175 recliners. I ordered a straight row of three. My question is, for you folks that own this chair, how do you connect the individual chairs to form a single unit? My row of three has a two armed chair, and two single arm chairs. Ok that makes sense. The single arm chairs have the arm on the left. On the bottom right of these two chairs, there is a frame with a male joiner. My problem is that under the left arm of each of these chairs, there is no frame with a female joiner by which the three chairs would be mated to form a single unit. Let me know what your 13175 has to mate the single chairs to each other. Then I can tell my online store what my shipment is missing. THANK YOU VERY MUCH, in advance for your help.